package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增分类
     * @param category
     * @return
     */
    @PostMapping
    public R save(@RequestBody Category category){
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    /**
     * 分页从查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page<Category>> page(int page,int pageSize){
        //构造分页构造器
        Page<Category> pageInfo = new Page<>(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //添加排序条件
        lqw.orderByAsc(Category::getSort);
        //执行条件
        Page<Category> page1 = categoryService.page(pageInfo, lqw);
        return R.success(page1);
    }

    /**
     *根据Id删除分类信息
     * @param id
     * @return
     */
    @DeleteMapping
    public R deletebyid(Long id) {
        //categoryService.removeById(id);
        categoryService.remove(id);
        return R.success("删除成功");
    }

    /**
     * 根据Id修改分类信息
     * @param category
     * @return
     */
    @PutMapping
    public R update(@RequestBody Category category){
        categoryService.updateById(category);
        return R.success("修改分类信息成功");
    }

    /**
     *根据条件查询分类数据
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R list(Category category){
        //创建条件构造器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //添加条件
        lqw.eq(category.getType()!=null, Category::getType,category.getType());
        //添加排序条件
        lqw.orderByDesc(Category::getSort);
        //执行条件
        List<Category> list = categoryService.list(lqw);
        return R.success(list);
    }

}
